AMD Ryzen 9 5900X vs Ryzen 9 3900X Performance Review

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Rendering Benchmarks

Cinebench R20 Single Thread

AMD Ryzen 9 5900X Cinebench R20

In the Cinebench R20 single-threaded test, we see a result of 646 points, which is exceptional for any CPU. This is a significant improvement over the older Ryzen 9 3900X.

Cinebench R20 Multi-Thread

AMD Ryzen 9 5900X Cinebench R20

In this test, we see a score of 9224 from the overclocked 5900X. Compare that to the 8414 of the 5900X at stock speeds and the improvement is relatively solid. Now, compared to the 7251 of the 3900X, the difference is substantial. The 11900K simply falls flat on its face here.

Cinebench R23 Single-Thread

AMD Ryzen 9 5900X Cinebench R23

In Cinebench R23’s single-thread test, we see a smaller gap across the test systems. The 5900X while overclocked manages only a small lead over the stock 11900K, but achieves a decent gain over the 5900X at stock speeds. The Ryzen 9 3900X falls behind everything else here.

Cinebench R23 Multi-Thread

AMD Ryzen 9 5900X Cinebench R23

In the multi-thread test, the 5900X far outstrips its predecessor here. Oddly, it’s faster at stock speeds than overclocked. This is a test that traditionally favors manual overclocking on CPUs with larger core counts. The 11900K gets beaten pretty badly here as its core count is just too low to compete.

Dan Dobrowolski
Dan has been writing motherboard reviews for the past 15 years, with the first decade or so writing for [H}ard|OCP. Dan brings his depth of knowledge about motherboards and their components to his reviews here at The FPS Review to help you select the best one for your needs.

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